code: def raiser(eclass):
      """raise an exception"""
      raise eclass()
  
imports: import os
  import signal
  import sys
  import time
  import warnings
  from contextlib import contextmanager
  import pytest
  import zmq
  from decorator import decorator
  from ipyparallel import Client, error
  from ipyparallel.tests import add_engines, launchers
label_desc: Use image node_id 5 for calling a global function with example usage: raiser(eclass) without return types